NameError: name ‘datetime’ is not defined
I’m teaching myself Python and was just “exploring”. Google says that datetime is a global variable but when I try to find todays date in the terminal I receive the NameError in the question title?
Python
python – datetime with timezone to epoch
In the code below, I am calculating now epoch and beginning of current day epoch.
Pandas convert string to int
I have a large dataframe with ID numbers:
Can I use a multiprocessing Queue in a function called by Pool.imap?
I’m using python 2.7, and trying to run some CPU heavy tasks in their own processes. I would like to be able to send messages back to the parent process to keep it informed of the current status of the process. The multiprocessing Queue seems perfect for this but I can’t figure out how to get it work.
gunicorn autoreload on source change
Finally I migrated my development env from runserver to gunicorn/nginx.
Passing a data frame column and external list to udf under withColumn
I have a Spark dataframe with the following structure. The bodyText_token has the tokens (processed/set of words). And I have a nested list of defined keywords
Efficient way to remove keys with empty strings from a dict
I have a dict and would like to remove all the keys for which there are empty value strings.
Generating a Random Hex Color in Python
For a Django App, each “member” is assigned a color to help identify them. Their color is stored in the database and then printed/copied into the HTML when it is needed. The only issue is that I am unsure how to generate random Hex colors in python/django. It’s easy enough to generate RGB colors, but to store them I would either need to a) make three extra columns in my “Member” model or b) store them all in the same column and use commas to separate them, then, later, parse the colors for the HTML. Neither of these are very appealing, so, again, I’m wondering how to generate random Hex colors in python/django.
How to display a 3D plot of a 3D array isosurface in matplotlib mplot3D or similar?
I have a 3-dimensional numpy array. I’d like to display (in matplotlib) a nice 3D plot of an isosurface of this array (or more strictly, display an isosurface of the 3D scalar field defined by interpolating between the sample points).